问题描述
所以我遇到的问题是，当我降低P1的速度并提高P2的速度时（通过更改sped和speed的值）。在“呼巴”状态下（当P1失去生命时变为True），P1将开始新回合，并自动朝着上一个回合的方向移动； P2也会自动移动，但移动方向与上次相反-这两个移动均未达到指定的速度（norm），但似乎只有一半。有没有办法防止这种情况。
注意： 游戏的每一轮都有3秒的暂停时间，这对游戏至关重要吗？ 以前，我在其他游戏机制的while循环中进一步遇到了Huba条件，将其放置在当前位置可以确保仅当两个放置器都在碰撞时移动时才发生错误。
关于游戏的注意事项： 用矩形表示的2个玩家在地图上移动（有点像2个玩家的pac-man），但他们彼此追逐。当奔跑者被追赶者抓住时，它失去了生命，下一轮比赛以可见的3秒计时器开始。
我为解决此问题所做的尝试： 移动后将速度恢复为0，这会导致运动非常僵硬。 将速度变化置于循环的不同部分（例如，在我的倒计时嵌入式循环结束时）。 还可以打印测试速度和sped的值，这些值会响应。
根据要求提供更多代码，虽然很多，但减少了很多，并没有包括墙壁
# Importing neccessary modules and libraries
import pygame
import ctypes
import time
user32 = ctypes.windll.user32
Touch = False
#pause = True
seconds = 5
milliseconds = 0
ELMO = True
player1_Lives = 3
player2_Lives = 3
P1_score = 0
P2_score = 0
P1_scoreSeconds = 0
P2_scoreSeconds = 0
resetTimer = 5
P1_scoreSeconds = 0
P2_scoreSeconds = 0
P1_score = 0
P2_score = 0
D_BLUE = (0,24,46)
BLACK = (0,0)
WHITE = (255,255,255)
SCREEN_WIDTH = user32.GetSystemMetrics(78)#1536
SCREEN_HEIGHT = user32.GetSystemMetrics(79)#864
Touch = False
THREE = pygame.image.load('Three.png')
TWO = pygame.image.load('Two.png')
ONE = pygame.image.load('One.png')
class Player(pygame.sprite.Sprite):
global Touch
# Constructor function
def __init__(self,x,y,colour):
# Call the parent's constructor
super().__init__()
# Set height,width and then making use of colour as a parameter
self.image = pygame.Surface([20,20])
self.image.fill(colour)
# Make our top-left corner the passed-in location.
self.rect = self.image.get_rect()
#if Touch == False:
self.rect.y = y
self.rect.x = x
#else:
#self.rect.y = 500
#self.rect.x = 500
# Set speed vector
self.change_x = 0
self.change_y = 0
# Creating lists of objects (self.walls/ all_sprites) for later use but ensuring their values don't interfere
self.walls = None
self.all_sprites = None
# Creating objects (self.walls/ all_sprites) for later use but ensuring their values don't interfere
self.P1 = None
self.P2 = None
def changespeed(self,y):
self.change_x += x
self.change_y += y
def reset(self,r,q):
self.rect.y = q
self.rect.x = r
# Detects collisions when the players position is updated
def update(self):
global Touch
# Move left/right
self.rect.x += self.change_x
Apple = pygame.sprite.collide_rect(P1,P2)
if Apple:
Touch = True
# Did this update cause us to hit a wall?
block_hit_list = pygame.sprite.spritecollide(self,self.all_sprites,False)
for block in block_hit_list:
if block != self:
#Touch = True
#time.sleep(0.1)
#Touch = False
# If we are moving right,set our right side to the left side of the item we hit
if self.change_x > 0:
self.rect.right = block.rect.left
else:
# Otherwise if we are moving left,do the opposite.
self.rect.left = block.rect.right
# Collisons on the y-axis
self.rect.y += self.change_y
Apple = pygame.sprite.collide_rect(P1,P2)
if Apple:
Touch = True
# Check and see if we hit anything
block_hit_list = pygame.sprite.spritecollide(self,False)
for block in block_hit_list:
if block != self:
# Reset our position based on the top/bottom of the object.
if self.change_y > 0:
self.rect.bottom = block.rect.top
else:
self.rect.top = block.rect.bottom
# Create the player paddle object
P2 = Player(400,400,RED)
P1 = Player(600,WHITE)
# Wall interaction
P1.walls = wall_list
P2.walls = wall_list
# Adding the players to the list of sprites
all_sprite_list.add(P1)
all_sprite_list.add(P2)
# Assigns the attribute all_sprites all_sprites_list for the players
P1.all_sprites = all_sprite_list
P2.all_sprites = all_sprite_list
# Defining a clock to be used later
clock = pygame.time.Clock()
# A function that allows you to create a message in a predifined font
def text_objects(text,font,colour):
textSurface = font.render(text,True,colour)
return textSurface,textSurface.get_rect()
def Text(message,size,colour,y):
msgg = str(message)
MediumText = pygame.font.Font('freesansbold.ttf',size)
TextSurf,TextRect = text_objects(msgg,MediumText,colour)
TextRect.center = ((x),(y))
screen.blit(TextSurf,TextRect)
def Gameplay():
global P1_sped
global P1_speed
global P2_sped
global P2_speed
global Touch
global player1_Lives
global player2_Lives
global P1_score
global P2_score
global done
global seconds
global milliseconds
global ELMO
global P1_scoreSeconds
global P2_scoreSeconds
global resetTimer
global P1_score
global P2_score
if ELMO == True:
Player_1_turn = True
Player_2_turn = False
P1_Turns = 3
P2_Turns = 3
#resetTimer = 5
clock = pygame.time.Clock()
P1_sped = P1_sped + 1
P1_speed = P1_speed - 1
print(P1_sped,"sped")
print(P1_speed,"speed")
Countdown = True
done = False
#Billy = True
Huba = None
else:
#resetTimer = 5
clock = pygame.time.Clock()
ELMO = True
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
# Keydown movement bindings
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
P2.changespeed(P2_speed,0)
if event.key == pygame.K_RIGHT:
P2.changespeed(P2_sped,0)
if event.key == pygame.K_UP:
P2.changespeed(0,P2_speed)
if event.key == pygame.K_DOWN:
P2.changespeed(0,P2_sped)
if event.key == pygame.K_a:
P1.changespeed(P1_speed,0)
if event.key == pygame.K_d:
P1.changespeed(P1_sped,0)
if event.key == pygame.K_w:
P1.changespeed(0,P1_speed)
if event.key == pygame.K_s:
P1.changespeed(0,P1_sped)
if event.key == pygame.K_p:
Paused()
# Keyup movement bindings
elif event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
P2.changespeed(P2_sped,0)
if event.key == pygame.K_RIGHT:
P2.changespeed(P2_speed,P2_sped)
if event.key == pygame.K_DOWN:
P2.changespeed(0,P2_speed)
if event.key == pygame.K_a:
P1.changespeed(P1_sped,0)
if event.key == pygame.K_d:
P1.changespeed(P1_speed,P1_sped)
if event.key == pygame.K_s:
P1.changespeed(0,P1_speed)
if Huba == True:
AppleSauce()
P1_sped -= 1
P1_speed += 1
P2_sped += 1
P2_speed -= 1
Huba = False
if Touch == True:
#Countdown = True
Countdown = True
P1.reset(500,500)
P2.reset(800,500)
if Player_1_turn == True:
P2_score += 300
P1_scoreSeconds += seconds
if player1_Lives > 0:
player1_Lives -= 1
P1_Turns -= 1
seconds = resetTimer
if player1_Lives == 0:
Huba = True
Player_1_turn = False
Player_2_turn = True
Text("GameOver Player1",100,WHITE,SCREEN_WIDTH/2,SCREEN_HEIGHT/2)
pygame.display.update()
time.sleep(1)
#print(P1_sped,"P1_sped again")
#print(P1_speed,"P1_speed again")
#print(P2_sped,"P2_sped")
#print(P2_speed,"P2_speed")
else:
#if Player_2_turn == True:
P1_score += 300
P2_scoreSeconds += seconds
if player2_Lives > 0:
player2_Lives -= 1
P2_Turns -= 1
seconds = resetTimer
if player2_Lives == 0:
Text("GameOver Player2",SCREEN_HEIGHT/2)
pygame.display.update()
time.sleep(1)
GameEnd()
Touch = False
# Applying an update to the spries
all_sprite_list.update()
# Backgorund colour
screen.fill(D_BLUE)
# Applying the sprites
all_sprite_list.draw(screen)
# The countdown used before the game starts
if Countdown == True:
screen.blit(THREE,(SCREEN_WIDTH/2-53.5,SCREEN_HEIGHT/2-91.5))
pygame.display.update()
time.sleep(1)
screen.fill(D_BLUE)
all_sprite_list.draw(screen)
#pygame.draw.rect(screen,BLACK,(SCREEN_WIDTH/2-250,SCREEN_HEIGHT/2-250,500,500))
screen.blit(TWO,(SCREEN_WIDTH/2-52,SCREEN_HEIGHT/2-88.5))
pygame.display.update()
time.sleep(1)
screen.fill(D_BLUE)
all_sprite_list.draw(screen)
#pygame.draw.rect(screen,500))
screen.blit(ONE,(SCREEN_WIDTH/2-39,SCREEN_HEIGHT/2-87))
pygame.display.update()
time.sleep(1)
clock.tick(60)
Countdown = False
milliseconds += clock.tick(300)
if milliseconds > 1000:
seconds -= 1
milliseconds -= 1000
#if seconds > 60:
#minutes += 1
#seconds -= 60
if seconds == 0:
#Countdown = True
P1.reset(500,500)
if Player_1_turn:
P1_score += 1000
P1_Turns -= 1
Countdown = True
seconds = resetTimer
if P1_Turns == 0:
Text("GameOver Player1",SCREEN_HEIGHT/2)
#screen.blit(Text("GameOver Player1",SCREEN_HEIGHT/2)) #Optional alternative
pygame.display.update()
time.sleep(1)
Player_2_turn = True
Player_1_turn = False
else:
#if Player_2_turn == True or Player_1_turn == False:
P2_score += 1000
P2_Turns -= 1
Countdown = True
seconds = resetTimer
if P2_Turns == 0:
Text("GameOver Player2",SCREEN_HEIGHT/2)
pygame.display.update()
time.sleep(1)
#GameEnd()
if seconds > 5:
seconds = 5
Text(seconds,SCREEN_HEIGHT/2-350)
pygame.display.flip()
StartScreen()
pygame.quit()
问题重点从这里开始（原文）
norm = 5
P1_sped = norm
P1_speed = -norm
P2_sped = norm
P2_speed = -norm
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
# Keydown movement bindings
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
P2.changespeed(P2_speed,P1_sped)
if event.key == pygame.K_p:
Paused()
# Keyup movement bindings
elif event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
P2.changespeed(P2_sped,P1_speed)
if Huba == True:
AppleSauce()
P1_sped -= 1
P1_speed += 1
P2_sped += 1
P2_speed -= 1
Huba = False
解决方法
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